vc6 set process memory usage

[Macinbomzh]

How do I take for example 2gb RAM and allow only a specific process to use them?

[Banfa]

Create your own heap with HeapCreate and allocate your memory for yopur process form there.

This does rather beg the question why would you want to? No process can access data allocated to another process as the virtual memory maps are completely separate.

[Macinbomzh]

My program has to make another program run with a specific size of memory
since it can't be interruped.
Maybe i should inject the code for allocating memory to another process?
I know i should ask it as a seperate question but... How do you inject a code
to another process? or maybe VirtualAllocEx should do?

[donbock]

Declaring a static memory allocation eliminates the possibility of malloc failing to give you the memory you asked for; instead, the program would fail to load if there wasn't enough memory. (Is that progress?)

There's another issue though. If your program needs to run quite often then perhaps you want to prevent its memory from being swapped out when some other process needs a lot of virtual memory. On the other hand, if your program accesses its memory often enough then that memory is least likely to be swapped out. I don't know what facilities Windows provides for controlling the swap algorithm.

[Macinbomzh]

What actually i need to do is:
A program running, declaring variables and meanwhile,
I give the program alot of space to declare the variables and to work for declaring them and i save its state (variables) in a file every X seconds.